Mounting for cylinder lock



June 12, 1962 M. CHECK ET AL 3,038,749

MOUNTING .FOR CYLINDER LOCK Filed Feb. 20, 1958 2 Sheets-Sheet 2 Ti EfINVENTORS Man/ms I? Cine-c4 R404 A Kala/A mp/My 3,038,749 Patented June12, 1962 ticut Filed Feb. 20, 1958, Ser. No. 716,373 3 Claims. (Cl.292--337) This invention relates to the mounting of cylindrical locks.

Locks of the particular class have a case that is substantiallycylindrical and positioned in a bore formed in a door. When inserted inthe bore, the cylindrical lock case moves into coacting relation to alatch tube on the door, with mechanism in the case then adapted tocontrol a bolt in the latch tube. The lock case has a spindle sleeve oneach opposed end thereof, and roses are mounted on those sleeves.Generally, at least one of the roses is secured to its correspondingsleeve against endwise motion relatively thereto, through screw threadsor equivalent means, the roses being free for rotation relatively to thelock case. The roses lie against the opposed faces of the door, andthrough axial pull on the case hold the case relatively to the door,relying partly on friction between the roses and the case and partly onthe coacting relation of the case and latch tube to hold the case inposition. We contribute by our invention an exceedingly novel lockmounting that will act positively to hold the lock case in position,without relying upon friction or on the latch tube.

Those persons skilled in the art will appreciate that the locks of theclass described have considerable advantages and have Won widespreadacceptance. Nevertheless, in the cylindrical locks of the prior art, itis sometimes found that the mounting of the lock case is not fullysatisfactory. Thus, since the lock case is held in position simplythrough the application of the roses to the opposed faces of the door,the case will no longer be held firmly in its proper position should theroses become loose, and the movement of the lock case then will beresisted only by the latch tube.

That places considerable strain upon the latch tube, and this isparticularly true in those instances in which the lock is equipped witha lever handle in lieu of a knob, because of the use of such handlesnaturally tends to increase the rotating force that must be accepted bythe lock. The strain that is thus applied to the latch tube not onlyWill destroy the smooth functioning of the lock mechanism, but will makethe lock subject to attack. Through the novel lock mounting that we haveconceived, it is possible to mount a cylindrical lock case verysecurely, so that it cannot move relatively to a door. Moreover, thelock case cannot rotate even though one or both roses may becomesomewhat loose, and the case will be maintained in its proper alignedrelation to the latch tube.

As is rather usual in the art, we utilize roses that have a rose platelying directly against the face of the door, the roses further havingdecorative parts that are secured relatively to the rose plates.Usually, the rose plates are formed of steel and the decorative partsmay be formed of brass or aluminum, as the case may be, finished inaccordance with the style of hardware. As a feature of our invention, weutilize means that secure at least one of the roses or its rose plate toa face of the door and that holds the rose plate against rotationrelatively to the door. We then utilize means to lock the case and roseplate against rotation relatively to one another. Those means may be anintegral part of the lock case, but we do contemplate utilizing aseparate part that has surfaces in interlocking relation to the case androse. We prefer to form one of the rose plates with an opening in whichis positioned an interlocking part extending from one end of the case.That part can slide in the plate opening to allow the rose plate andlock case to be assembled relatively to one another, but with thesurfaces of the opening coacting with the part so that the part will beeflective to prevent any rotation between the rose and the cylindricallock case.

Obviously, by so interlocking the case and the rose plate, it becomesimpossible for the lock case to rotate relatively to the door, since therose plate cannot rotate. Moreover, through the particular utilizationof the interlocking part and rose plate, the proper position of the lockcase will be assured, and there will be no possibility that theprocedure of mounting the case will draw it away from its intendedposition on the door. Ac tually, we may equip the lock case with partsthat interlock with both roses, each rose being secured to the door andacting to hold the lock case in position. That is not essential,however. Whether we utilize one or more than one part, our inventionenables us very effectively to secure a cylindrical lock case againstmovement. Thereby we are able to mount and to hold the lock case in itsproper predetermined aligned relation to the latch tube, despite thefact that one or both of the roses may become loose relatively to thedoor and lock case.

We have thus outlined rather broadly the more important features of ourinvention in order that the detailed description thereof that followsmay be better understood, and in order that our contribution to the artmay be better appreciated. There are, of course, additional features ofour invention that will be described ereinafter and which will form thesubject of the claims appended hereto. Those skilled in the art willappreciate that the conception on which our disclosure is based mayreadily be utilized as a basis for the designing of other structures forcarrying out the several purposes of our invention. It is important,therefore, that the claims be regarded as including such equivalentconstructions as do not depart from the spirit and scope of ourinvention, in order to prevent the appropriation of our invention bythose skilled in the art.

Referring now to the drawings:

FIG. 1 is a view on the line =1-1 in FIG. 2 showing a cylindrical lockthat utilizes our novel mounting.

FIG. "-2 is a cross section showing our invention.

FIG. 3 shows a cylindrical lock embodying our invention in a differentform.

FIG. 4 is a sectional end view of the mounting shown in FIG. 3.

FIG. 5 shows an interlocking plate utilized in FIGS. 3 and 4.

FIG. 6 is a cross section o line 66 in FIG. 5.

For the purpose of describing our invention, We show in FIG. 1 of thedrawings a lock of the cylindrical type having a cylindrical lock caseit that is positioned in a bore 11 formed in a door D. As is usual in alock of the particular class, the cylindrical lock case 10 has on itsopposed ends a pair of spindle bearing sleeves 12, 13, with knobs orlever handles 14, 15', mounted to rotate on the end portions of thosesleeves. As shown in FIG. 2, a latch tube 16 is mounted on the frontportion of the door, with a latch bolt 17 movable in that latch tube tocoact with a strike, not shown. When the cylindrical lock case lit isinserted into the bore 11, an opening 18 in that case will interlockwith portions 19 on the latch tube 16 whereby to assemble the case andtube relatively to one another, with retractor mechanism 23 in lock case10 in coacting relation to a bolt tail 21.

As is customary in looks of the particular class, we

utilize inside and outside rose plates 22, 23, FIG. 1, that are mountedabout the spindle sleeves 12, 13, and that have decorative parts 27, 28,secured relatively thereto. Each rose plate '22, 23, lies against a faceof the door D, and at least one of those plates generally is heldagainst outward movement relatively to the corresponding spindle sleeve.Thus, for purposes of disclosure, we show in FIG. 1 a nut 23a that isthreaded on spindle sleeve 13, with a part 231; on the nut engaging therose plate 23 to hold it against outward movement. The nut 23a has alsoa shoulder 23c that holds the decorative rose part 28 in assembledposition. We show the threaded nut 23a merely by way of example, and itis conceivable that other means may be utilized for securing the roseplate 23, such as the slot and detent arrangement shown in the patent toBiblin, No. 2,751,243.

To secure the opposed rose plate 22 in FIGS. 1 and 2, we show screws 26that extend from that plate 2.2 to the lock case 10. Those screws 26when tightened force the two rose plates 22, 23, toward one another withthe door D between them, thus holding lock case it} relatively to thedoor. The decorative part 27 will be snapped over rose plate 22 wherebyto conceal the screws.

We have thus far described a construction that is rather conventional initself, and that is likely to become loose relatively to the door, as wehave already indicated. Thus, in the prior art, any loosening ofthreaded holding means like the screws 26, or some relieving of thefriction between the nut 23a and the rose plate 23 or threaded sleeve13, will allow for a gradual rotation of the rose plate 23 relatively tolock case 10, so that the lock case gradually becomes more and moreloosely related to the door. Therefore, it sometimes happens that thelock case in the earlier constructions is held against rotationrelatively to the door simply through the latch tube 16 and the latchbolt mechanism at 19 and 20. However, the lock case will still berequired to accept very considerable rotating forces, particularly whenequipped with lever handles such as we show at 14, 15.

As an important part of our invention, we secure at least one of therose plates 22, 23, against rotation relatively to the door. In theparticular construction that we have chosen to show in FIGS. 1 and 2, weutilize screws 24 that secure both rose plates 22, 23, against rotation,but only one rose need be so secured. it will be appreciated also thatpins or barbs can be utilized, provided they are of suflicient strengthand depth.

Further, we utilize in FIGS. 1 and 2 a pair of pins 29 that are arrangedin transverse openings 30 in the lock case 10. Each pin 29 has end parts31 that extend relatively to opposed ends of the case in an axialdirection, and in offset relation to the axis of spindle sleeves 12, 13.To coact with the pins 29, each of the rose plates 22, 23, has anopening 32 that accepts the corresponding part 31 of each pin 29. Thearrangement is such that the end parts 31 can slide in the openings 32so that the rose plates 22, 23, and pins 29 can move into assembledrelation to one another.

When so assembled, surfaces on the pins 29 will be in interlockingrelation to the openings 30' in lock case 10, While each part 31 of thepins 29 will be in coacting relation to one of the openings 32 in roseplates 22, 23. Where merely one of the rose plates 22 is secured byscrews 24, it will be appreciated that the pins 29 need extend merelyfrom the corresponding end of lock case 10, but we do prefer to utilizethe construction we have described, with both ends 31 on each pinengaged with both rose plates.

It is important to realize that the pins 29 will interlock thecylindrical lock case relatively to rose plates 22, 23, and thereby willact positively to prevent any rotation between plates 22, 23', and thelock case 10. Since the rose plates '22, 23, cannot rotate on the door,those plates will be fully effective not only to support lock case 10,but to hold lock case 10 against rotating movement relatively to thedoor D. Therefore, our invention enables us to hold the cylindrical lockcase 10 in its predetermined aligned relation to the latch tube 16. Infact, we are able through that construction to hold lock case 10 in itsproper aligned relation despite the fact that one or both of the roseplates 22, 23, may become loose.

Referring now to FIGS. 3 to 6 of the drawings, we show a further form ofmy invention utilized with a cylindrical lock that has a cylindricalcase 33 similar to that we have already described in connection withFIG. 1, that case 33 having opposed spindle sleeves 34 and 35. Roseplates 36, 37, are assembled about those sleeves, the rose plates beingheld in position through threaded nuts 36a, 37a, like the nut 23:: inFIGS. 1 and 2. We utilize screws 38 to secure the rose plates 36, 37, toopposed faces of the door and against rotating movement relatively tothe door. In the particular construction that We show in FIGS. 3 to 6,the lock case 63 has a series of lugs 39 on each end of the case. Weequip at least one end, and preferably each end of the lock case 33 witha part 40, shown in detail in FIGS. 5 and 6, that is formed withopenings 41 to accept the lugs 33. Thus, each part 40 when assembled tothe lock case 33 will be in interlocking relation to the case.

We further form each part 40 with a pair of legs or portions 42 thatextend in an axial direction. The legs 42 are adapted to slide toassembled position in openings 43 that we formin each rose plate 36, 37,those legs then extending between the lock case 33 and the correspondingrose plate. Thus, while in interlocking relation to lock case 33, eachpart 40 will coact with a rose plate 36 or 37 to hold case 33 againstrotating movement, in the manner that we have described in connectionwith FIG. 1.

We believe that those persons skilled in the art will now understandthat we have conceived a cylindrical lock mounting that is exceedinglynovel and that has very positive advantages over the constructions ofthe prior art. Through our invention, we are able to utilize acylindrical lock case and roses that may be assembled to the case in ausual way, yet we so support the cylindrical case that it positivelycannot rotate relatively to the door on Which it is mounted. Actually,the lock itself may have a construction that is conventional incylindrical locks. Nevertheless, our novel mounting will preventrotating movement of the cylindrical lock case relatively to the door.Thus, we can hold the case in predetermined aligned relation to thelatch tube on the door. That enables us positively to eliminate thestrain that will be applied to the latch tube and lock mechanisms inthose locks in which the lock case sometimes may move out of its properposition. Therefore, we believe that the very considerable value of ourinvention will be fully appreciated.

We now claim: 7

1. In a cylindrical lock of the class described, a lock case adapted tobe mounted in position in an opening formed through a door, the ends ofthe case being positioned inwardly from the faces of the door, said casehaving means interlocking with a latch tube when the case is in positionin the door opening, a spindle bearing sleeve extending from eachopposed end of the lock case outwardly in an axial direction in the dooropening, anchor means carried on the lock case at the opposed ends ofsaid case, said anchor means and case ends being formed with surfacescoacting to hold said means and case against relative rotation about theaxis of the spindle bearing sleeve, end portions on said anchor meansextending outwardly in the door opening toward both faces of the door, arose plate having a central opening for each spindle bearing sleeve,means for holding said rose plates assembled on said bearing sleeveswith the central openings of said plates about said sleeves, meansfixing each rose plate to a face of the door and against rotationthereon, and openings in both rose plates engaged with said end portionsof the anchor means to hold the lock case against rotation and twistingin the door opening and in predetermined aligned relation to the latchtube.

2. In a cylindrical lock of the class described, a lock case adapted tobe mounted in position in an opening formed through a door, the ends ofthe case being positioned inwardly from the faces of the door, said casehaving means interlocking with a latch tube when the case is in positionin the door opening, a spindle bearing sleeve extending from eachopposed end of the lock case outwardly in an axial direction in the dooropening, an anchor pin extending through the lock case and carried onthe opposed ends of said case, said case ends having openings into whichthe anchor pin is inserted in a position ofiset from the spindle bearingsleeve, so as to hold the pin and case against relative rotation aboutthe axis of said sleeve, end portions on said anchor pin extending fromthe ends of the lock case outwardly in the door opening toward bothfaces of the door, a rose plate having a central opening for eachspindle bearing sleeve, means for holding said rose plates assembled onsaid bearing sleeves with the central openings of said plates about saidsleeves, means fixing each rose plate to a face of the door and againstrotation thereon, and openings in both rose plates engaged With said endportions of the anchor pin to hold the lock case against rotation andtwisting in the door opening and in predetermined aligned relation tothe latch tube.

3. In a cylindrical lock of the class described, a lock case adapted tobe mounted in position in an opening formed through a door, the ends ofthe case being positioned inwardly from the faces of the door, said casehaving means interlocking with a latch tube when the case is in positionin the door opening, a spindle bearing sleeve extending from eachopposed end of the lock case outwardly in an axial direction in the dooropening, lugs extending from said ends of the lock case in positionsolfset from said spindle bearing sleeve, an anchor plate assembledagainst each opposed end of the lock case and carried on said case, saidanchor plates being formed with openings that accept said lugs so as tohold said plates and said case against relative rotation about the axisof the spindle bearing sleeve, angular end portions on said anchorplates extending outwardly in the door opening toward both faces of thedoor, a rose plate having a central opening for each spindle bearingsleeve, means for holding said rose plates assembled on said bearingsleeves with the central openings of said plates about said sleeves,means fixing each rose plate to a face of the door and against rotationthereon, and openings in both rose plates engaged with said end portionsof the anchor plates to hold the lock case against rotation and twistingin the door opening and in predetermined aligned relation to the latchtube.

References Cited in the file of this patent UNITED STATES PATENTS1,938,112 Schlage Dec. 5, 1933 2,004,510 Schlage June 11, 1935 2,642,302Young June 16, 1953 2,655,398 Birbaum Oct. 13, 1953 2,751,243 BiblinJune 19, 1956 2,828,153 Ahlquist Mar. 25, 1958

